//
// DotNetNuke - http://www.dotnetnuke.com
// Copyright (c) 2002-2010
// by Perpetual Motion Interactive Systems Inc. ( http://www.perpetualmotion.ca )
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
//

using System;
using System.Collections;
using System.ComponentModel;
using System.Reflection;
namespace DotNetNuke.UI.WebControls
{
	public class PropertyCategoryComparer : IComparer
	{
		public int Compare(object x, object y)
		{
			if (x is PropertyInfo && y is PropertyInfo) {
				PropertyInfo xProp = (PropertyInfo)x;
				PropertyInfo yProp = (PropertyInfo)y;
				object[] xCategory = xProp.GetCustomAttributes(typeof(CategoryAttribute), true);
				string xCategoryName = string.Empty;
				if (xCategory.Length > 0) {
					xCategoryName = ((CategoryAttribute)xCategory[0]).Category;
				} else {
					xCategoryName = CategoryAttribute.Default.Category;
				}
				object[] yCategory = yProp.GetCustomAttributes(typeof(CategoryAttribute), true);
				string yCategoryName = string.Empty;
				if (yCategory.Length > 0) {
					yCategoryName = ((CategoryAttribute)yCategory[0]).Category;
				} else {
					yCategoryName = CategoryAttribute.Default.Category;
				}
				if (xCategoryName == yCategoryName) {
					return string.Compare(xProp.Name, yProp.Name);
				} else {
					return string.Compare(xCategoryName, yCategoryName);
				}
			} else {
				throw new ArgumentException("Object is not of type PropertyInfo");
			}
		}
	}
}
